2988907656 has 128 divisors (see below), whose sum is σ = 9054044160. Its totient is φ = 804038400.

The previous prime is 2988907633. The next prime is 2988907673. The reversal of 2988907656 is 6567098892.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2988907656.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184941 + ... + 200451.

It is an arithmetic number, because the mean of its divisors is an integer number (70734720).

Almost surely, 2^2988907656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2988907656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4527022080).

2988907656 is an abundant number, since it is smaller than the sum of its proper divisors (6065136504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2988907656 is a wasteful number, since it uses less digits than its factorization.

2988907656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15595 (or 15591 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 60.

The square root of 2988907656 is about 54670.9031935636. The cubic root of 2988907656 is about 1440.4698274031.

The spelling of 2988907656 in words is "two billion, nine hundred eighty-eight million, nine hundred seven thousand, six hundred fifty-six".